2)$\left\{\begin{matrix} x-2\sqrt{y+1} &=3 \\ x^{3}-4x^{2}\sqrt{y+1}-9x-8y&=-52-42y \end{matrix}\right.$
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NLT: Chú ý tiêu đề nhé !
Edited by Nguyen Lam Thinh, 23-11-2012 - 22:56.
Edited by Nguyen Lam Thinh, 23-11-2012 - 22:56.
Edited by Nguyen Lam Thinh, 23-11-2012 - 22:02.
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